diff options
| author | Serge Semin <Sergey.Semin@baikalelectronics.ru> | 2020-05-29 16:11:59 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-05-29 17:55:50 +0300 |
| commit | 6c710c0cb6725bdbe647b958756685aed0295936 (patch) | |
| tree | 1ca2374e97e0e1b073333d19df8489a4f996a28c /drivers/spi/Kconfig | |
| parent | 77ccff803d27279ccc100dc906c6f456c8fa515c (diff) | |
| download | linux-6c710c0cb6725bdbe647b958756685aed0295936.tar.xz | |
spi: dw: Move Non-DMA code to the DW PCIe-SPI driver
This is a preparation patch before adding the DW DMA support into the
DW SPI MMIO driver. We need to unpin the Non-DMA-specific code from the
intended to be generic DW APB SSI DMA code. This isn't that hard,
since the most part of the spi-dw-mid.c driver in fact implements a
generic DMA interface for the DW SPI controller driver. The only Intel
MID specifics concern getting the max frequency from the MRST Clock
Control Unit and fetching the DMA controller channels from
corresponding PCIe DMA controller. Since first one is related with the
SPI interface configuration we moved it' implementation into the
DW PCIe-SPI driver module. After that former spi-dw-mid.c file
can be just renamed to be the DW SPI DMA module optionally compiled in to
the DW APB SSI core driver.
Co-developed-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru>
Co-developed-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru>
Signed-off-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru>
Signed-off-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Link: https://lore.kernel.org/r/20200529131205.31838-11-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/Kconfig')
| -rw-r--r-- | drivers/spi/Kconfig | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 099d6a75a371..73d508eb4871 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -226,14 +226,14 @@ config SPI_DESIGNWARE help general driver for SPI controller core from DesignWare +config SPI_DW_DMA + bool "DMA support for DW SPI controller" + depends on SPI_DESIGNWARE && DW_DMAC_PCI + config SPI_DW_PCI tristate "PCI interface driver for DW SPI core" depends on SPI_DESIGNWARE && PCI -config SPI_DW_MID_DMA - bool "DMA support for DW SPI controller on Intel MID platform" - depends on SPI_DW_PCI && DW_DMAC_PCI - config SPI_DW_MMIO tristate "Memory-mapped io interface driver for DW SPI core" depends on SPI_DESIGNWARE |